Hidden Handlebar Lock Pin Mechanism for Bicycle Theft Prevention
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Solution Overview
Problem
Conventional handlebar locking devices for vehicles like bicycles and motorcycles are exposed and can be easily unlocked or tampered with, making them ineffective as theft prevention measures, as they can be operated by anyone and are vulnerable to forcible methods.
Innovation Solution
A handlebar locking mechanism with a lock pin and drive mechanism that is contained within the vehicle's exterior component, allowing the lock pin to engage or disengage with a recess or hole on the handlebar shaft, making it difficult to unlock using forcible methods, and can be used as a theft deterrent by locking the handlebar in a position that prevents straight travel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the handlebar locking device is exposed and accessible, then it is easy to operate and unlock, but it can be easily tampered with and used for theft
Solution Approach 1:
The locking mechanism is nested within the vehicle's exterior component (fairing or body panel). The lock pin, engaging section, and drive mechanism are all contained inside the exterior component, with only the engaging section accessible through a recess or hole in the shaft. This nesting approach allows the mechanism to remain hidden and protected while still being operable.
Solution Approach 2:
The critical locking components (lock pin, engaging section, and drive mechanism) are extracted from the visible exterior and placed inside the vehicle's body. Only the essential engaging section remains accessible through a small opening, separating the operational interface from the vulnerable mechanical components.
2Reliability
If the locking mechanism is hidden inside the exterior component, then it is difficult to tamper with or break, but it may be more complex to manufacture and assemble
Solution Approach 1:
The exterior component serves multiple functions: it acts as both the vehicle's body/aerodynamic fairing and as the housing for the locking mechanism. This multi-functionality eliminates the need for a separate lock housing, simplifying manufacturing and assembly while providing protection for the locking components.
Solution Approach 2:
The locking mechanism is merged with the vehicle's exterior component structure. The fairing or body panel is designed to simultaneously serve as the protective housing and the aesthetic exterior surface, reducing the total number of parts and simplifying the manufacturing process.
3Reliability
If the lock pin is engaged with the engaging section, then the handlebar is locked securely, but the mechanism may be more complex compared to simple stopper pieces
Solution Approach 1:
The manual operation of simple stopper pieces is replaced with an automated drive mechanism that can be actuated by an electric motor, solenoid, or other actuator. This substitution provides more reliable and secure locking while allowing for remote or automated control, reducing the need for complex manual adjustment mechanisms.
Data Source
AI summary
The present invention provides a handlebar locking mechanism and a handlebar locking device, each of which (i) can be used for a moving body whose traveling direction is changed with a handlebar and (ii) which makes it difficult to unlock the handlebar by a forcible method such as breaking. The handlebar locking device (20) includes an engagement hole (11c) made in a steering column (11a), a lock pin (31) which locks a handlebar (5) in a case where a pin tip part (31a) of the lock pin (31) is engaged with the engagement hole (11c), and a lock pin drive mechanism which (i) moves, in a case where the handlebar (5) is to be locked, the lock pin (31) so that the pin tip part (31a) is engaged with the engagement hole (11c) and (ii) moves, in a case where the handlebar (5) is to be unlocked, the lock pin (31) so that the pin tip part (31a) is removed from the engagement hole (11c). The engagement hole (11c), the lock pin (31), and the lock pin drive mechanism being contained and provided in a frame (2) of a bicycle (1) so as to be not viewable from outside of the bicycle (1).